UPDATE, 12/11/12, 6:10 p.m. EST: The names of lawyers from Sidley Austin and Covington & Burling have been added in the article’s seventh and eighth paragraphs.

Chinese auto parts manufacturer Wanxiang Group is set to acquire the assets of bankrupt—and onetime government-backed—A123 Systems, which makes lithium-ion batteries for electric cars, after coming up with the winning bid Sunday.